A Hopkinton man accused of stabbing a police officer with a hypodermic needle in the ladies’ room at a Park Avenue supermarket pleaded not guilty at his arraignment this morning in Worcester Superior Court.

Brad D. Hamilton, 29, of 14 Pinecrest Village, Hopkinton was indicted Dec. 13 on charges of assault and battery with a dangerous weapon, trespassing and disturbing the peace stemming from a July 16 incident at the Price Chopper at 221 Park Ave.

According to a police statement on file in Central District Court, where Mr. Hamilton was initially charged, Officer Ryan Stone went to the Price Chopper July 16 for a report of a man in the ladies’ room who was refusing to leave. Store employees said there was blood on the floor in the ladies’ room and expressed concern for their safety and that of their customers, according to Officer Stone’s written account.

The officer said he entered the ladies’ room and asked the man, later identified as Mr. Hamilton, to open the door to the stall he was in and come out. Officer Stone said he saw an object in Mr. Hamilton’s right hand when he opened the stall door.

Mr. Hamilton allegedly refused to comply with Officer Stone’s order to show his hands and drop the object.

After ordering Mr. Hamilton to put his hands on the wall, Officer Stone saw what he described as drug paraphernalia on the toilet in the stall, according to his statement.

The officer said he asked Mr. Hamilton where his needle was and Mr. Hamilton told him it was in his pocket. Officer Stone said he asked whether the needle was capped and Mr. Hamilton responded with a series of unintelligible statements.

The officer said he told Mr. Hamilton he was being arrested for trespassing and ordered him to place his hands behind his back. Mr. Hamilton allegedly refused.

As he was trying to get handcuffs on Mr. Hamilton, Mr. Hamilton jerked his hand toward him in a thrusting motion, according to Officer Stone’s account. Officer Stone said he immediately felt a sharp sting in his right hand.

The officer said he pushed Mr. Hamilton up against the wall and saw that the object with which he had been stabbed was a hypodermic needle. The officer said he again told Mr. Hamilton to drop the needle and Mr. Hamilton complied and was taken into custody.

The officer’s written statement does not say whether he sought medical attention.

At the request of Assistant District Attorney Brett F. Dillon, Judge James R. Lemire set Mr. Hamilton’s bail at $10,000 cash and continued his case to Jan. 22.

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